153963 has 6 divisors (see below), whose sum is σ = 222404. Its totient is φ = 102636.

The previous prime is 153953. The next prime is 153991. The reversal of 153963 is 369351.

It is not a de Polignac number, because 153963 - 2⁴ = 153947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8545 + ... + 8562.

2¹⁵³⁹⁶³ is an apocalyptic number.

153963 is a deficient number, since it is larger than the sum of its proper divisors (68441).

153963 is a wasteful number, since it uses less digits than its factorization.

153963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17113 (or 17110 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 153963 is about 392.3811922098. The cubic root of 153963 is about 53.5967910383.

The spelling of 153963 in words is "one hundred fifty-three thousand, nine hundred sixty-three".